package lab02.Test36;

/**
 * Created by ASUS on 2017/11/9.
 */
public class Undergraduate extends Student {
    @Override
    String calGrade() {
        double avg = calAverage();
        if(avg>=80 && avg<=100)
            grade="优秀";
        else if(avg>=70 && avg<80)
            grade="良好";
        else if(avg>=60 && avg<70)
            grade="一般";
        else if(avg>=50 && avg<60)
            grade="及格";
        else
            grade="不及格";


        return grade;
    }
}
